JPS62172693A - Dimmer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a light control device, and more particularly to a light control device suitably used for controlling the light of a stage in a theater or the like.

BACKGROUND OF THE INVENTION In theater stages, hotel banquet halls, and the like, lighting effects are performed using dimming devices. This effect includes a 7 A Y in that gradually brightens the lighting, a 7 A Y in that gradually brightens the lighting, a 7 A Y in that gradually brightens the lighting, a 7 A Y out that gradually brightens the lighting, and a cross fade that is a mixture of the two. 11! In addition to this, 7-turn control is often performed in which the lighting is blinked at a preset period.

3I 121 is a block diagram showing the electrical configuration of a light control device according to the prior art. Dimmer device 11 according to conventional technology
is a lighting load such as an incandescent lamp formed by the semiconductor AC switch S8, the date G of the semiconductor Z-flow switching switch SS, the tick 7, and the timing circuit TC that creates the pulse. Dimmer 12 to control power energization
And select between 7-aid control and 7-way control by switching switch 1.
3, a dimming control circuit 1.t which determines the dimming level during fade control, and a blinking control circuit 15 which determines the 7-light cycle during 7-light control.
A series circuit of a lighting load such as an incandescent lamp and a semiconductor Vl-l-input switching element in the dimmer 12 is connected to the commercial 2-current power supply AC. The semiconductor tributary switching element SS performs phase control in which the conduction angle is changed by pulses applied to the semiconductor tributary switching element SS, thereby controlling the power applied to the load and adjusting the brightness of the illumination.

The dimming control circuit 14 generates and outputs a fade control voltage Vll shown in FIG. 4 via a line /11. The output level Va can be set to any value within the range determined by the level a, constant n, and VR. The blinking control circuit 15 is, for example, a 7-lip, 70-tub circuit, and the line! A seven-point control voltage V i 2 having a pulse width λ shown in FIG.

The switching device 13 switches between the above two control voltages, that is, the 7-way gJJ voltage V11 or the 7-way system 01lI voltage V12.
which selects the line, yA 2 through +3
The timing circuit TC in the dimmer 12 is inputted to the control input terminal CT of the dimmer 112 . Note control': r! ,
A pulse corresponding to the level of V11 or Vi2 is applied to the gate G of the semiconductor AC switching element S8, and its conductor angle is set, and the lighting load (2) is controlled by phase control. Power is applied and dimming is performed using fade control or 7-point control.

In the conventional dimming control method of 1:1 conduction, the switching device 13 completely mechanically switches between 7-aid control and 7-light control, so there is no coordination between the two openings.
Therefore, there was a problem that the desired lighting effects could not be obtained. The problems can be identified below with reference to Figure 3.

FIG. 6 is a diagram showing an example of a fade control program. During time Tl from time +, O to L1*, there is a 7-doin period, and the brightness of the illumination gradually increases until it reaches the first brightness B1.
brightness B1 is maintained during time T2 from time L1 to time t2, and then brightness B1 is maintained during time T2 from time t2 to time t3.
is the fade-out period, during which the illumination gradually increases its brightness, starting at time L3 and then decreasing to the second brightness B2.
It is a cross 7 aid program that maintains the following.

In this case, only fade control is required, so in the prior art, the switch 13 shown in FIG. The voltage regulator VR may be used to adjust the voltage to a desired set voltage level at the time specified in the program shown in tJsG. As mentioned above, the power of lighting load (・
This is because the r power is set by the level of the control voltage applied to the dimmer 12.

FIG. 7 is a diagram showing another example of a program controlled by Tsukuda I.

The 7th I71 is the progress of the demand 6 figure and the darkness, but the Chuyumi Jube N
[1 hour 12h1 7 A 1-out period 1st:
After the 3UJ, 7 liters of control has been added. In other words, in the program shown in Figure 7,
From time 11 t 2, the push-opening starts to flicker and gradually becomes moe 11, time 3, f8: continues 7 lights at brightness B2, 7I, and so on. In order to carry out the cross 7 aid control including the illustrated 1 Una 7 light by the prior art dimmer 11 illustrated in the 3rd figure, the switch 13 is switched at time L2 of the program illustrated in the 7th figure. , χb-e is made conductive,
Since the pulse control voltage V12 having a constant voltage Vb and a pulse width λ shown in FIG. 5 above is input to the dimmer 12, the illumination in this case becomes as shown in FIG. At time L2, the brightness B3 is determined by the average level of the control voltage V12.
The fade-out control indicated by the reference mark R between 2 and t3 disappears, and the desired dimming control shown in Fig. 7 becomes impossible, and in order to reduce the effect of the lighting effect to the bottom, 7 aid control and 7 light adjustment are arbitrarily performed. There has been a desire for a dimming device that can be controlled through combinations. However, in order to realize such a mixed program of loss 72 and 7 loss control using the prior art light control device shown in FIG. We need to find a way to levy it! Otherwise, the circuit becomes complicated and the cost to obtain the desired effect is high.

Purpose The purpose of the present invention is to solve the above-mentioned problems and to provide fade control and 7'J fll that can be realized with a simple circuit configuration.
l? The object of the present invention is to provide a dimming VC setting that can freely set II.

Figure 1 is a block diagram showing the electrical configuration of a light control device according to an embodiment of the present invention. The dimmer 1 according to the present invention includes a dimmer 2 and a control voltage for turning on/off the dimmer 2.
t 7ION/OF control unit 3 and lighting load ■
and a dimming control circuit 4 for setting 7 brightness levels. The dimmer 2 includes a timing circuit TC that performs semiconductor AC switching according to a control input and a trigger pulse given to the date G of the element SS, and a semiconductor AC switching element whose conduction angle is set by the pulse and performs phase control. It consists of SS. The ON/OFF control unit 3 is attached with a fade/7-turn setting switch P, and in this embodiment, for example, the setting switch +P is set to O.
When the setting switch P is OFF, the lighting load is controlled by 7 degrees, and when the setting switch P is OFF, the lighting load is controlled by 7 degrees.

In the dimmer control circuit t, the control 1 level of the dimmer 2 is set by the level setter VR, and the line! 1, the control voltage is output to the ON/OFF control section 3. The ON10FF control unit 3 is as described below:
Depending on whether the 7 aid/7 aid setting switch P is ON or FF, the control voltage can be changed as is or as a pulse-modulated control voltage that repeats ON and OFF in the set 7 aid inter-period. , and output to the dimmer 2 via the line 2. ON/Off in 7 power cycles
- When the control voltage is set to F, the 7 aid control is activated, and when the control voltage is adjusted, the 7 aid control is activated.
I won't do it.

Figure 2 is a block diagram showing the configuration of the ON/("IF control circuit 3") of the Kinotsu example. Divide the frequency and use the output to turn the analog switch AS
The control voltage to the dimmer 2 is transmitted to the dimmer line, el, which is realized by a minute circuit for N/OFF driving and a transistor.

The reset terminal R8 of the frequency divider circuit is connected to the analog switch AS that conducts/cuts off between the
7. A setting switch P is connected. Oscillation circuit C
K is attached with a 7-stroke setting device F that can vary the oscillation frequency and set a desired 7-stroke cycle.

What should be noted in this embodiment is the control voltage transmission line No. 1 to the dimmer 2. ! An analog switch ΔS is installed between 2, and it is turned on/off by the 7 aid/7 trigger setting switch P.
The reason is that it is controlled by FF.

Next: The operation of this embodiment will be explained with reference to Fig. Therefore, the control set by the dimmer control unit 4 remains unchanged.
At this time, the lighting load I4 is adjusted to the brightness corresponding to the level of the level setting VR-r set at this time. When the 7 aid/7 power setting switch P is Or''F, the frequency divider circuit becomes active, and the 7 power cycle goes up to the 7 power setting device F and is set by the minute meter to the output IJ, that is, to the 7 power cycle. As a result, the analog switch AS is turned ON/OF Fq, but the control voltage transmitted to the line e+12 at At the same time, it becomes a pulse-modulated control voltage and is input to 4?g2.At this time, 7 liters of power I7
The peak value of the level of the control voltage pulse-modulated in the I period does not change and is the same as the modulation level. Therefore, while the lighting load ■ is being controlled in 7 mode using a certain control voltage level, the 7 mode y/7 mode 11 setting switch P is turned OFF.
When switching to F I-7 light control, the lighting load I is subjected to 7 light control at the brightness level during fade control at a predetermined cycle, and blinks ≧repeat. “The operation of this embodiment will be explained again with reference to FIG. , the level setting device VR of the dimming controller 4 is changed in the direction of increasing the level, and the brightness of the lighting load I- gradually increases accordingly.When the brightness reaches B1 at time !11 t1, The level setter VR stops, and the brightness is maintained at the level of B2 until time 115 t 2. After time t2, it is the 7-ed-out, '7-ritzka; t2
Then, the fade/7 switch setting switch P is turned off.
At the same time, the level setting HvR is changed in the level decreasing direction. Along with this, the lighting load L gradually decreases its brightness while blinking at a period determined by the 7-light setting device F, and at time 11 t 3, the lighting becomes 7-light with a brightness of B2,
0 force j + E l; After L, the state is maintained.

In this embodiment, even though the lighting load is actually applied to the 7 aids and the 11 rows of control lights, in the section of the prior art;
A sudden and discontinuous change in concavity does not occur, and therefore smooth and continuous 7-aid/7-light control can be realized in accordance with a desired dimming control program. Moreover, the electrical circuit configuration according to this embodiment is
Compared to the circuit configuration of the prior art as shown in FIG. 3, the circuit configuration is made into a 1 (J) configuration, and the operability during the C1 current control of the cross fade and 7 filters is also excellent.

Effects As described above, according to the present invention, there is provided a dimmer and a dimmer that can set the lighting load to any brightness by controlling the phase of the tributary power amount to the lighting load using a control voltage. a dimmer controller that can variably set the level of a control voltage to the dimmer, and an ON/OFF switch that is interposed between the dimmer controller and the dimmer, and that can control the control voltage to turn ON/OFF at a separately determined cycle. A control section is provided,
Since the ○N10 F I11 control section is operated by a 7-aid/7-light setting switch, it is possible to smoothly and easily control the lighting load with a simple circuit configuration. This will further improve the lighting effect.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the electrical configuration of one embodiment of the present invention, and FIG. 12 is a block diagram of the 0N10 F F included in the above embodiment.
The block diagram of the control unit: IS3 diagram is based on the conventional technology. 1
Figure 4 is a waveform diagram of the control voltage for setting the dimming level, Figure 5 is a waveform diagram of the control voltage when performing seven-point control, and Figure 6 is a block diagram showing the 7-channel configuration of the optical device. Diagram 7 showing an example of program 911 when performing cross-fade control
The figure shows an example of a program for controlling the combination of cross 7, V and 7 forces, and FIG. 8 is a diagram showing the state when the program shown in FIG. 7 is executed according to the prior art. 1.11...Dimmer, 2,12...Dimmer, 3.
・・ON, / n r FI control section, 4.14 ・・
・Dimmer control circuit, AC...Commercial AC power supply, AS...
Analog switch, CK...Oscillation circuit, D...Discrete unit, F...7 setter, ■,...p6 light load,
P...Fade/7 points, force setting switch, SS...
・Semiconductor AC switching element, SW...changeover switch, VR...control voltage level setter fee FI! Person Patent Attorney Kei Nishi Department Figure 1 Figure 5 Kanobun (T) 1-T1←T2→T30 Hijima (T) Takema (T)

Claims (1)

[Scope of Claim] A dimmer that controls the phase of the AC power of a lighting load connected to a commercial AC power source and can set the lighting load to any brightness from maximum to off. a dimmer connected in series with the dimmer, and a dimmer capable of creating a control voltage for controlling the conduction angle of the dimmer and setting the control voltage to an arbitrary level within a predetermined range. A control circuit, and an ON/OFF control section interposed between the dimmer and the dimming control circuit and capable of turning the control voltage ON/OFF at a predetermined period. light device.